Côr ABC is an Aberystwyth-based mixed choir conducted by Gwennan Williams. In normal times, the choir has a busy programme of activities that includes concerts, competitions, and recordings.

Côr ABC’s website

Côr Dinas

Côr Dinas is the women’s choir of the London Welsh and is conducted by Andrew Cusworth. It is a close community of singers that performs frequently in a wide range of concerts, services, and competitions.

Côr Dinas’ website

Dafydd John Pritchard

Dafydd is a poet who won the Crown at the National Eisteddfod in Bro Dinefwr in 1996. He has published two volumes of poetry; dim ond deud (Barddas, 2006) and Lôn Fain (Barddas,  2013). He competes in BBC Radio Cymru’s Talwrn y Beirdd as a member of the Cŵps team and in the National Eisteddfod’s Ymryson y Beirdd as a member of the Ceredigion team. He was chair of Barddas for five years and is a regular reviewer. He works at the National Library of Wales.

Dafydd wrote the englyn set to music in this piece.

Robert Russell

Robert Russell is an Australian-born composer living in the UK. He predominantly writes music for musicals, video games and rock bands, but can also be seen accompanying choirs (including Côr Dinas), recording singers and teaching mathematics.

To find out more about Robert and what he’s doing, visit or

Robert has been responsible for producing all of the videos associated with this project, as well as providing the piano accompaniment for the virtual performance.

Gwennan Williams

Gwennan Williams is a musician who is passionate about choral music and community music-making. She holds a joint honours degree in music and German from the University of Birmingham. She has conducted Côr ABC since 2013. She won the Conductor of the Festival prize at Gŵyl Fawr Aberteifi in 2018.

Gwennan sang for all of the female parts of the instructional videos.

Andrew Cusworth

Andrew Cusworth is an academic, conductor, and award-winning composer who is currently an 1851 Research Fellow at the Bodleian Libraries, University of Oxford. He is the conductor of Côr Dinas and a member of Côr ABC.

Andrew wrote the music to set Dafydd’s englyn and can be seen conducting the virtual performance.

Andrew Cusworth’s website.